Red, Blue, Yellow
Place of Origin
The second characteristic of artificial crystals, especially colored artificial crystals, is uniform color. The whole necklace is more uniform in color, especially the yellow crystal series and the brown and black synthetic crystals. The natural yellow, brown and black crystals are often uneven. Natural crystals are not only uneven in color, but they are often tea-toned (except for brown crystals). It is even more interesting that under the incandescent light at night, the tea-yellow crystals do not have a bit of yellow, which is exactly like brown crystals. It is not good to mix with tea crystals. identify. The synthetic citrine I have seen is pure and uniform in color, and some of them have darker tones, but do not have tea tones, and will not change color under incandescent lamps at night.
It is worth noting that in artificial crystals, there are often deep purple flakes with good orientation, which is easily reminiscent of the characteristics of irregular flakes in natural amethyst. The biggest difference between the two is that the dark purple chromophores in the synthetic amethyst are oriented in parallel parallel flakes, with little difference in size and shape, and obvious boundaries. The chromophore of natural amethyst is random and irregular, the color tone changes, and the boundary is gradual. If the dark purple piece in the synthetic amethyst is compared to a floating "purple cloth piece", the purple group in the natural amethyst can be regarded as a floating "purple smoke group". This is the main difference between the two.